<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }

        .content {

            width: 500px;
            height: 500px;
            border: 1px solid red;
            margin: 0 auto;
            margin-top: 5px;
            padding-top: 5px;
        }

        .an_headre,
        .an_body {
            margin: 0 auto;
            width: 250px;
            height: 125px;
            background-color: chartreuse;
            border-radius: 125px 125px 0 0;
            position: relative;
        }

        .an_headre::after,
        .an_headre::before {
            content: "";
            position: absolute;
            width: 20px;
            height: 20px;
            border-radius: 20px;
            background-color: #ffffff;
            top: 60px;
        }

        .an_headre::after {
            left: 60px;
        }

        .an_headre::before {
            left: 160px;
        }

        .an_body {
            border-radius: 0px;
            margin-top: 10px;
        }

        .an_body::after,
        .an_body::before {
            content: "";
            position: absolute;
            width: 20px;
            height: 160px;
            border-radius: 20px;
            background-color: chartreuse;
            top: 10px;
        }

        .an_body::after {
            left: -25px;
        }

        .an_body::before {
            left: 257px;
        }

        .an_footer {
            margin: 0 auto;
            width: 250px;
            height: 100px;
            background-color: chartreuse;
            border-radius: 0 0 20px 20px;
            position: relative;
        }

        .an_footer::before,
        .an_footer::after {
            content: "";
            position: absolute;
            width: 20px;
            height: 120px;
            background-color: chartreuse;
            border-radius: 0 0 6px 6px;
            top: 90px;
        }

        .an_footer::before {
            left: 40px;
        }

        .an_footer::after {
            left: 190px;
        }
    </style>
</head>

<body>
    <div class="content">
        <div class="an_headre">

        </div>
        <div class="an_body">

        </div>
        <div class="an_footer">



        </div>

    </div>
</body>

</html>